Samwontech TEMI2000 Series Use and care manual

COMMUNICATION MANUAL
TEMPERATURE & HUMIDITY
PROGRAMMABLE CONTROLER
TEMI 2000 - SERIES
TEMI 2300
TEMI 2500
TEMI 2700

SAMWONTECH
1th Edition of TEMI2000_Sseies IM : Dec. 15. 2008 Page 1 / 1
※ This manual applies to TEMI2300, TEMI2500 and TEMI2700.
※ The model stated the manual content is TEMI2500.
Contents
1. Safety Precautions …………………………………………………………………………………………… 1
2. Communication Specifications ………………………………………………………………………………………… 3
3. Communication Setting ………………………………………………………………………………………………… 4
4. Wiring for Communication ……………………………………………………………………………………………… 5
5. Communication Command ………………………………………………………………………………………………… 7
6. MODBUS Protocol ………………………………………………………………………………………………………… 18
7. D-REGISTER Description ……………………………………………………………………………………………… 24
▪ D-REGISTER table …………………………………………………………………………………………………… 49

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1st Edition of TEMI2000_Series IM : Dec. 15. 2008 Page 1 / 58
1 Safety Precautions
Thank you for purchasing TEMI2500, programmable temperature & humidity controller.
This Communication Manual describes communication of the TEMI2500 controller.
음SAFETY SYMBOL MARKS음
(A) Symbolizes ‘Caution’ and ‘Warning’. The information with this symbol is especially important
for preventing from user injury and protecting the product and system.
(1) Product : This symbol indicates an imminently hazardous situation which if not avoided,
will result in serious injury or system damage.
(2) Communication Manual : This symbol indicates potential hazard that may cause personal
injury by electrical shock.
(B) Symbolizes ‘Protective Earth (PE) Terminal.’
This symbol indicates that the terminal must be connected to the Ground prior to operating.
(C) Symbolizes ‘Supplementary Explanation.’
The information with this symbol describes additional explanation for features.
(D) Symbolizes ‘Reference.’
☞ This symbol indicates further information and page to refer.
음Precautionary Remarks on this Communication Manual음
(A) This manual should be passed on the End- User and kept at a suitable place for easy review in
time.
(B) Read and understand this Communication Manual carefully before using the product.
(C) This Communication Manual describes functions and features of the product in detail, and
SAMWONTECH can not guarantee against over applications would suit a customer’s particular
purpose which is not described in this manual.
(D) Unauthorized duplication and modification of this Communication Manual are strongly prohibited.
(E) The contents of this manual may be modified without prior notice.
(F) If any errors or omissions in this manual should come to the attention of the user, feel free to
contact our sales representatives or our sales office.

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1st Edition of TEMI2000_Series IM : Dec. 15. 2008 Page 2 / 58
음Precautions for Safety and Unauthorized Modification
(A) For protecting and ensuring the safety of this product and relevant system, all of the safety
instructions and precautions should be well recognized and strictly observed by all users.
(B) SAMWONTECH does not guarantee against damage resulting from unauthorized alteration, misuse, or
abuse.
(C) When using additional safety circuit or part such as Noise Filter to protect this product and
relevant system, it is strongly required to install that to outside of this product. Additional
installation and modification inside of this product are prohibited.
(D) Do not try to disassemble, repair, or modify the product. It may become the cause of a trouble
such as malfunction, electric shock, fire.
(E) Contact our sales dept. for part replacement or consumables.
(F) Keep the product away from water inflowing. This may become a critical cause of trouble.
(G) External shock on the product may lead to damage and malfunction.
음Limitation of Liability 음
(A) SAMWONTECH does not guarantee or accept responsibility for this product other than the clauses
stated in our warranty policy.
(B) SAMWONTECH assumes no liability to any party for any loss or damage, direct or indirect, caused
by the use or any unpredictable defect of the product.
음Warranty Policy 음
(A) Warranty term of this TEMI2500 is one year after delivery to the first purchaser for being free
of defects in materials and faulty workmanship under the condition that the product has been
applied according to this manual.
(B) The repairing cost will be charged for defective product out of warranty period. This charge
will be the actual cost estimated by SAMWONTECH.
(C) Repairing cost may be charged even if within warranty period for following cases.
(1) Damage due to USER FAULT (Ex.: Product initialization by password loss)
(2) Damage due to natural disaster (Ex.: fire, flood)
(3) Damage due to additional removal and re-installation after the first one.
(4) Damage due to unauthorized disassembles, modification and alternation.
(5) Damage due to unexpected power failure caused unstable power supply.
(6) Others
(D) If any A/S is required, feel free to contact our sales office or a representative.

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1st Edition of TEMI2000_Series IM : Dec. 15. 2008 Page 3 / 58
2. Communication Specification
The TEMI2500 controller provides Half-Duplex method support on RS232C and RS485 communication interface.
- RS232C interface supports 1:1 direct communication between host computer on network system and TEMI2500.
- RS485 interface supports to connect upper level network system with up to 31 slave TEMI2500 controller.
█ Parameters for communication setting
Parameter Range Description
PCLINK Default protocol
PCLINK+SUM Default protocol + CheckSum
MODBUS ASC MODBUS ASCII
PROTOCOL
MODBUS RTU MODBUS RTU
9600 9600 bps
19200 19200 bps
38400 38400 bps
57600 57600 bps
SPEED (BPS)
115200 115200 bps
NONE None Parity
EVEN Even Parity
PARITY
ODD Odd Parity
1 1 bit
STOP BIT 2 2 bits
7 7 bits
DATA LENGTH 8 8 bits
ADDRESS 1~99 Address
RESPONSE TIME 0~10 RESPONSE TIME (=PRCESS TIME+RESPONSE*10msec)
■ Factory default value
• PROTOCOL PCLINK+SUM(PCLINK+CheckSum)
• SPEDD (BPS) 9600 bps
• PARITY NONE
• STOP BIT 1 (1 bit)
• DATA LENGTH 8 (8 bits)
• ADDRESS 1
• RESPONSE 0 (Process time + 10 msec)

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3. Communication setting
TEMI2500 provides flexible communication interface RS232C or RS485 from Control Unit directly.
▶ After detaching BACK COVER from Control Unit shown as [Figure-1], communication interface between RS232C
and RS485 can be selected with socket and pin-header on power board of Control Board.
▶ It is recommended to use tool like tweezers for setting socket to pin-header correctly.
☞ Make sure setup completed correctly.
[Figure-1] Control Unit
Control Unit
BACK COVER
ⓑ Pull down
ⓐPush
▶ Do not disassemble Power board from Control Unit case during setting comm. interface.
▶ It is recommended to use tool like tweezers for setting comm. interface.
▶ Make sure setu
p
com
p
leted correctl
y
.
[Figure-2] Communication Interface setting
Power board
RS232C
RS485
Socket
Pin-Header

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4. Wiring for Communication
Connector wiring between TEMI2500 and network system depends on communication interface setting
(RS232C/RS485).
█ Modular Connector Pin-Mapping for COM2 port
█ Description of Modular Connector Pin-Mapping for COM2 port
RS232C RS485
PIN no. Signal Symbol Signal Symbol
1 Transmit Data TxD Receive/Transmit Data - RTX-
2 Receive Data RxD Receive/Transmit Data + RTX+
3 Signal Ground SG Signal Ground SG
4 - - - -
5 - - - -
6 - - - -
6
5
4
3
2
1
SG
RxD
TxD
6
5
4
3
2
1
SG
RTX+
RTX-
RS485
RS232C

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█ 6 Pin connector wiring for RS232C interface
█ 6 Pin connector wiring for RS485 interface
☞ Up to 31 slave TEMI2500 controllers can be connected to a master device by multi-drop networking.
☞ Make sure to install 200Ω(1/4W) resistor on Last Leg at both end of terminal Slave and Master(PC, PLC).
①
○
TEMI2500(COM2) Master Station
Shielded Cable
Tx
D
②
R
x
D
③
SG
SHI
ELD
②
R
D
③
T
D
⑦
RTS
⑧
CTS
⑤
SG
RTX-
RTX+
SG
Master Station
Shielded Cable
TEMI2500(COM2)
TEMI2500(COM2)
①
RTX
-
②
RTX
+
③
SG
①
RTX
-
②
RTX
+
③
SG

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5. Communication Command
5.1 The Frame Structure of standard protocol
The frame structure of protocol transmitting upper-level network system to TEMI2500
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
STX Address Command , Data SUM CR LF
① Protocol Header
The beginning of communication command with STX (Start of Text), ASCII string with 0x02.
② Slave TEMI2500 Address
Slave unit address of TEMI2500.
③ Command
Function Command for communication. (Refer to 5.2 ~ 5.10).
④ Delimiter
Symbolize to separate Command and Data by Comma. (',')
⑤ Data
Formal text strings regulated by communication command rule.
⑥ Check Sum
-‘SUM' protocol is a more sophisticated one which includes Check Sum as an error check.
- Check Sum is calculated as following.
1) Add the ASCII code of characters from the character next to STX one by one up to the character prior to SUM
2) Represent the lowest one byte of the sum as a hexadecimal notation (2 characters).
⑦, ⑧ Protocol Tail
ASCII code to close communication command by indicating CR(0xOD) and LF(0xOA).

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█ Example for SUM
◈ Example
To read the consecutively D-Register from D0001 (TEMP.PV) to D0006 (HUMI.SP)
- Request : [stx]01RSD,06,0001[cr][lf]
- Request (with CheckSum) : [stx]01RSD,06,0001C9[cr][lf]
☞ As shown below, hexa decimal value adding each text at 01RSD,06,0001 by ASCII code is 2C9, and lower
digit 2 characters C9 will be used for CheckSum.
Text 0 1 R S D , 0 6 , 0 0 0 1
Ascii value 30 31 52 53 44 2C 30 36 2C 30 30 30 31
█ ASCII Table
상
위 0 1 2 3 4 5 6 7
0 NUL DLE SPACE 0 @ P ` p
1 SOH DC1 ! 1 A Q a q
2 STX DC2 “ 2 B R b r
3 ETX DC3 # 3 C S c s
4 EOT DC4 $ 4 D T d t
5 ENQ NAK % 5 E U e u
6 ACK SYN & 6 F V f v
7 BEL ETB ‘ 7 G W g w
8 BS CAN ( 8 H X h x
9 HT EM ) 9 I Y i y
A LF SUB * : J Z j z
B VT ESC + ; K [ k {
C FF FS , < L ¥ l |
D CR GS - = M ] m }
E SO RS . > N ^ n ~
F SI US / ? O _ o DEL
+ 2C9

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5.2 Type of Communication Command
Two types of commands are provided on TEMI2500. One is general READ/WRITE command to read and write
information on D-Register, and the other is Reference command to read self-information of TEMI2500.
▣ Reference Command
Command Description
AMI Displays model name and Version-Revision of TEMI2500
▣ READ/WRITE Command
Command Description
RSD Read data in consecutive D-Register in sequence (Read)
RRD Read data in arbitrary single D-Register (Read)
WSD Write data in consecutive D-Register in sequence (Write)
WRD Write data in arbitrary single D-Register (Write)
STD Register arbitrary single address to monitor (D-Register Monitoring Set)
CLD Read data in address registered by STD command (D-Register Monitoring Call)
☞ Each Command can read or write up to 64 D-Register and all of the SED/CLD data will be reset by power OFF,
so the data should be registered again.

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5.3 ERROR Response
When an Error occurs during communication, TEMI2500 transmits a frame as following.
Bytes 1 2 2 2 2 1 1
Frame STX Address NG Error Code SUM CR LF
▣ Description of Error Code
Error Code Description Remarks
01 Invalid Command setting
02 Invalid D-Register setting
04 Data Setting Error Invalid text data input
(Available 0~9, A~F : hexadecimals)
08 Invalid Format configuration ▪ Different command format with designated
▪ Differnet number of setting with designated
11 CheckSum Error
12 Monitoring Command Error No setup Monitoring Command
00 Other Errors

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5.4 RSD Command
RSD Command is used to read data in a part of D-Register by consecutive address in sequence.
▣ Request Message Frame
Bytes 1 2 3 1 2 1 4 2 1 1
Frame STX Address RSD , Count
Number , D-Reg. SUM CR LF
▣ Response Message Frame
Bytes 1 2 3 1 2 1 4 1 …
Frame STX Address RSD , OK , Data - 1 , …
1 4 2 1 1
, Data - n SUM CR LF
▪ Count Number : 1 ~ 64
▪ Data : Hexa-decimal 16bit string 4 character with no decimal point
◈ Example
To read the D-Register FROM D0001 (TEMP.PV) TO D0002 (TEMP.SP)
- Request : [stx]01RSD,02,0001[cr][lf]
- Request (with CheckSum) : [stx]01RSD,02,0001C5[cr][lf]
([stx] = 0x02, [cr] = 0x0d, [lf] = 0x0a)
Response data will be same as below, when 50.0 of D0001 (TEMP.PV) and 30.0 of D0002 (TEMP.SP)
- Response : [stx]01RSD,OK,01F4,012C[cr][lf]
- Response (with CheckSum) : [stx]01RSD,OK,01F4,012C19[cr][lf]
※ Converting procedure 4digits hexadecimal response to decimal value.
① Radix conversion (Decimalize) : 01F4(hexadecimal) → 500(decimal)
② Multiply factor (decimal point) : 500 * 0.1 → 50.0

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5.5 RRD Command
RRD Command is used to read data in arbitrary single D-Register.
▣ Request Message Frame
Bytes 1 2 3 1 2 1 4 1 …
Frame STX Address RRD , Count
Number , D-Reg.- 1 , …
1 4 2 1 1
, D-Reg.- n SUM CR LF
▣ Response Message Frame
Bytes 1 2 3 1 2 1 4 1 …
Frame STX Address RRD , OK , Data - 1 , …
1 4 2 1 1
, Data - n SUM CR LF
▪ Count Number : 1 ~ 64
▪ Data : Hexa-decimal 16bit string 4 character with no decimal point
◈ Example
To read the D-Register D0001 (TEMP.PV) and D0002 (TEMP.SP)
- Request : [stx]01RRD,02,0001,0002[cr][lf]
- Request (with CheckSum) : [stx]01RRD,02,0001,0002B2[cr][lf]
Response data will be same as below, when 50.0 of D0001 (TEMP.PV) and 30.0 of D0002 (TEMP.SP)
- Response : [stx]01RRD,OK,01F4,012C[cr][lf]
- Response (with CheckSum) : [stx]01RRD,OK,01F4,012C18[cr][lf]

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5.6 WSD Command
WSD command is used to write data to a part of D-Register by consecutive address in sequence.
▣ Request Message Frame
Bytes 1 2 3 1 2 1 4 1 4
Frame STX Address WSD , Count
Number , D-Reg. , Data - 1
1 … 1 4 2 1 1
, … , Data - n SUM CR LF
▣ Response Message Frame
Bytes 1 2 3 1 2 2 1 1
Frame STX Address WSD , OK SUM CR LF
▪ Count Number : 1 ~ 64
▪ Data : Hexa-decimal 16bit string 4 character with no decimal point
◈ Example
To write data to the D-Register FROM D0102 (TEMP.SP) TO D0103 (HUMI.SP) on FIX mode operation
- Setting TEMP.SP : 50.0 ℃ → Remove decimal point(500) → Hexadecimalize (0x01F4)
- Setting HUMI.SP : 80.0 % → Remove decimal point(800) → Hexadecimalize (0x0320)
- Request : [stx]01WSD,02,0102,01F4,0320[cr][lf]
- Request(with CheckSum) : [stx]01WSD,02,0102,01F4,0320C4[cr][lf]

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5.7 WRD Command
WRD Command is used to write data in arbitrary single D-Register.
▣ Request Message Frame
Bytes 1 2 3 1 2 1 4 1 4
Frame STX Address WRD , Count
Number , D-Reg.- 1 , Data - 1
1 … 1 4 1 4 2 1 1
, … , D-Reg. - n , Data - n SUM CR LF
▣ Response Message Frame
Bytes 1 2 3 1 2 2 1 1
Frame STX Address WRD , OK SUM CR LF
▪ Count Number : 1 ~ 64
▪ Data : Hexa-decimal 16bit string 4 character with no decimal point
◈ Example
To write 50.0 ℃ into the D0102(TEMP.SP) and 0.5 ℃ into the D0106(TEMP.SLOPE) on FIX mode operation.
- Setting TEMP.SP : 50.0 ℃ → Remove decimal point (500) → Hexadecimalize (0x01F4)
- Setting TEMP.SLOPE : 0.5 ℃ → Remove decimal point (5) → Hexadecimalize (0x0005)
- Request : [stx]01WRD,02,0102,01F4,0106,0005[cr][lf]
- Request(with CheckSum) : [stx]01WRD,02,0102,01F4,0106,0005B6[cr][lf]

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5.8 STD Command
STD Command is used to list the D-Registers that is necessary to monitor frequently.
▣ Request Message Frame
Byte 1 2 3 1 2 1 4 1 4
Frame STX Address STD , Count
Number , D-Reg. - 1 , D-Reg. - 2
1 … 1 4 1 4 2 1 1
, … , D-Reg. - (n-1) , D-Reg. - n SUM CR LF
▣ Response Message Frame
Byte 1 2 3 1 2 2 1 1
Frame STX Address STD , OK SUM CR LF
▪ Count Number : 1 ~ 64
◈ Example
To register D0001(TEMP.PV), D0002(TEMP.SP), D0005(HUMI.PV) and D0006(HUMI.SP)
- Request : [stx]01STD,04,0001,0002,0005,0006[cr][lf]
- Request(with CheckSum) : [stx]01STD,04,0001,0002,0005,00069A[cr][lf]

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5.9 CLD Command
CLD Command is used to read data in the address which had been registered by STD command.
▣ Request Message Frame
Bytes 1 2 3 2 1 1
Frame STX Address CLD SUM CR LF
▣ Response Message Frame
Bytes 1 2 3 1 2 1 4 1 4
Frame STX Address CLD , OK , Data - 1 , Data - 2
1 … 1 4 1 4 2 1 1
, … , Data - (n-1) , Data - n SUM CR LF
▪ Count Number : 1 ~ 64

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5.10 AMI Command
AMI Command is used to get the controller own-information.
▣ Request Message Frame
Bytes 1 2 3 2 1 1
Frame STX Address AMI SUM CR LF
▣ Response Message Frame
Bytes 1 2 3 1 2 1
Frame STX Address AMI , OK ,
9 2 7 2 1 1
Model Name SPACE Version-Revision SUM CR LF
◈ Exmaple
To confirm controller own information
- Request : [STX]01AMI[CR][LF]
- Response (with CheckSum) : [STX]01AMI38[CR][LF]
- Response : [STX]01AMI,OK,TEMI-2000[sp][sp]V00-R00[CR][LF]
- Response (with CheckSum) : [stx]01AMI,OK,TEMI-2000[sp][sp]V00-R001D[cr][lf]

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6. MODBUS Protocol
6.1 The Frame Structure of MODBUS protocol
▣ Data Format
Item ASCII RTU
Protocol Header :(Colon) N/A
Protocol Tail [CR][LF] N/A
Data length 7-bit(Fixed) 8-bit(Fixed)
Data type ASCII Binary
Error detecting LRC
(Longitudinal Redundancy Check)
CRC-16
(Cyclic Redundancy Check)
Data time interval Under 1sec. Under 24-bit time
▣ The Frame Structure of MODBUS protocol
▶ Modbus ASCII
Protocol Header Address Function Code Data LRC Check Protocol Tail
1 character 2 character 2 character N character 2 character 2 character
(CR+LF)
▶ Modbus RTU
Protocol Header Address Function Code Data LRC Check Protocol Tail
N/A 8-Bit 8-Bit N * 8-Bit 16-Bit N/A
▪ N : Number of Hexadecimal data